Replaces the geometry of the feature with a two-dimensional circular arc whose shape is estimated from the first, middle, and last point of the linear feature passed in. The result is an approximation only and unless the linear feature is previously known to be circular, the result could be completely different than the original feature.
This transformer is most useful when the feature was known to have been a circular arc originally, and was stroked into a line. This transformer can then be used to turn it back into an arc.
For example, a feature containing these points:
will be turned into an arc feature with this geometry:
and these attributes:
This transformer accepts linear features with at least 3 points.
The estimated arc features are output through this port.
Editing Transformer Parameters
Using a set of menu options, transformer parameters can be assigned by referencing other elements in the workspace. More advanced functions, such as an advanced editor and an arithmetic editor, are also available in some transformers. To access a menu of these options, click beside the applicable parameter. For more information, see Transformer Parameter Menu Options.
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Associated FME function or factory: SnappingFactory, @ConvertToArc